0
The way a many to many relationship is done is by inserting a junction table and having two one to many relationships with the primary key of each of the two main tables becoming a join primary key of the junction table.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is one to many relationship in database er diagram?
A one-to-many relationship means that one row in one of the tables will relate directly to many rows in the other table.
What is the most common type of relationship between tables in a relational database?
one-to-many relationship
How do you do many to many relationships in database?
check out microsoft.com for step by step guide on how to do this
Distinguish between a relation and a relationship in database?
Relation is one record in the database or a tuple. Relationship is that how tables are connected to each other.
It is possible to have more than one table in a relational database?
You have to have more than one table in a relational database. In a relational database tables are designed to be related to other tables, so there has to be a minimum of two tables. Quite often there are a lot more than two.
What is the typical language for database management?
The typical language for database management is SQL. This is one of many programming languages, but this is the predominate one for database management.
What is ETL software used for?
ETL software stands for 'Extract, Transform and Load'. This software is used mainly to migrate data from one database to another. It is also used to convert database formats from one type to another.
How do I convert 2003 access database to 2007?
Open the database in Access 2007 and save as Access 2007 format.
How can you convert a database program to a word document?
Unless you want to read the code that powers the database programme, you don't want to convert it to a document. You may, however, want to convert a database file to a document. Since the database file contains not only the data you want to retrieve, but embedded codes, you may be able to save the database file into a .TXT format. Then you can open it using Windows Notepad -- if you're working on a Windows operating system. This will give you the contents of the database data file.
How many tables are required in access database?
one
How many Access database can you have open at one time?
as many as you want
What database object allows you to select specific information from one or many tables?
You are referring to the Microsoft Access Database. This allows you the ability to select specific information from one or many tables.
What is a paper based database?
One paper-based database I can readily think of is a phone book. Paper based database is database that consists of many papers, not a e-database! Paper-based communicaton is anything written, drawn or printed.
How can you convert an Access database to an Excel spreadsheet?
To export the Access database to an Excel sheet in an easy way and for a detailed explanation, see the related links.
What would you keep in your database?
A database should be dedicated to one sort of information. A common mistake designers of database systems make is combining unrelated information, leading to many issues.
Difference between database and relational database?
A database is a collection of data organized for easy access and manipulation, while a relational database is a type of database that stores data in a structured format using tables that are related to each other through keys. In a relational database, data is organized into rows and columns, and relationships between tables can be established using keys.
How many schemas can be used in one database?
Each database will have documentation and the maximum number of schemas will be listed in the documentation--specific to that software product.
